What type of plant growth involves turning over soil to promote fertility?

Cultivation is the practice that involves turning over soil to enhance its fertility. This process helps to aerate the soil, break up compacted layers, and integrate organic matter into the topsoil, all of which contribute to a healthier growing environment for plants. By disturbing the soil structure, cultivation can also help manage weeds and allow for better water infiltration, making it an essential practice in gardening and farming to ensure that plants have the nutrients they need for optimal growth.

In contrast, grafting refers to joining parts from different plants so they can grow together, while transplanting involves moving a plant from one location to another. Sowing is the act of planting seeds in the soil. Each of these methods serves different purposes in the overall scope of plant care and agriculture, but only cultivation specifically focuses on the improvement of soil conditions to promote plant fertility.